maindomain.com is the main domain I created when installing iRedMail first time. It passed amavis test after installation and after every domain addition. The key set into DNS zone is right (I compared with amavisd showkeys output).

Re: DKIM: invalid (public key: not available)

Check on your TLD provider that the nameservers you want to use are registered correctly for your domain. Check on all nameserver you use for correct dkim settings (both on master and slaves). Be sure that you don't have any mistakes in the zone files (like a missing dot and so on).

Re: DKIM: invalid (public key: not available)

maxie_ro wrote:

Check on your TLD provider that the nameservers you want to use are registered correctly for your domain. Check on all nameserver you use for correct dkim settings (both on master and slaves). Be sure that you don't have any mistakes in the zone files (like a missing dot and so on).

All my domains are hosted by the same provider. All have the same nameservers. And most entries are almost the same. I checked for typo without success.I noticed that for every domain (except for the main one) the nameserver automatically trim the domain name from the DKIM entry. I mean that the entry dkim._domainkey.vsdomain.it now is dkim._domainkey. I tried to change it back but it trim the domain name again in a few hours.The main domain is kept instead: dkim._domainkey.maindomain.it is still there.

I got this warnings:- Some of your nameservers failed to return an A record for your domain.- You have only 2 nameservers, which is the minimum allowed.- Your nameservers are all on the same class C IP namespace.- Your SOA refresh value is 24 hours.- Your SOA minimum TTL value is 24 hours.

Only one failed (but I guess it depends on policies):- I got an error response to my "RCPT TO:<postmaster@mydomain.it>" message.